package com.lb.myeam.common.utils;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.util.UUID;

public class StringUtil {

	public static String getMd5Val(String inStr) {
		MessageDigest md5 = null;
		try {
			md5 = MessageDigest.getInstance("MD5");
		} catch (Exception e) {
			System.out.println(e.toString());
			e.printStackTrace();
			return ";";
		}
		char[] charArray = inStr.toCharArray();
		byte[] byteArray = new byte[charArray.length];
		for (int i = 0; i < charArray.length; i++)
			byteArray[i] = (byte) charArray[i];
		byte[] md5Bytes = md5.digest(byteArray);
		StringBuffer hexValue = new StringBuffer();
		for (int i = 0; i < md5Bytes.length; i++) {
			int val = ((int) md5Bytes[i]) & 0xff;
			if (val < 16)
				hexValue.append("0");
			hexValue.append(Integer.toHexString(val));
		}
		return hexValue.toString();
	}

	public static String getUUID() {
		return UUID.randomUUID().toString().replaceAll("-", "");
	}

	
	public static String str2UTF8(String str) {
		return str2Encoding(str, "UTF-8");
	}

	
	public static String str2GBK(String str) {
		return str2Encoding(str, "GBK");
	}

	public static String str2Encoding(String str, String encoding) {
		if (null != str) {
			try {
				return new String(str.getBytes("iso-8859-1"), encoding);
			} catch (UnsupportedEncodingException e) {
				e.printStackTrace();
			}
		}
		return null;
	}
	public static boolean isNotBlank(String str){
		return !isBlank(str);
	}
	public static boolean isBlank(String str){
		return null == str || "".equals(str);
	}
}
